<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Map</title>
</head>
<body>
  <script>
    //声明 Map
    let m = new Map();

    //添加元素
    m.set('name','尚硅谷');
    m.set('change',function(){
      console.log('我们可以改变自己');
    });
    let key = {
      school:'ATGUIGU'
    };
    m.set(key,['北京','上海','深圳']);

    //size
    // console.log(m.size)

    //删除
    // m.delete('name')

    //获取
    // console.log(m.get('change'));
    // console.log(m.get(key));

    //清空
    // m.clear()

    //遍历
    // for(let v of m){
    //   console.log(v);
    // }

    console.log(m);

  </script>
</body>
</html>